This prokaryotic protein family includes CbiZ which converts adenosylcobinamide (AdoCbi) to adenosylcobyric acid (AdoCby), an intermediate of the de novo coenzyme B12 biosynthetic route [1].

1: CbiZ, an amidohydrolase enzyme required for salvaging the coenzyme B12 precursor cobinamide in archaea. Woodson JD, Escalante-Semerena JC; Proc Natl Acad Sci U S A 2004;101:3591-3596. PMID:14990804